air vent

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English[edit]

Noun[edit]

air vent (plural air vents)

  1. An opening, possibly covered by a grate or grill, possibly ducted, that allows air to circulate.
  2. A device or valve that allows to air to be evacuated from a radiator or pipe in a heating system.[1][2]
    Synonyms: bleed valve, bleed nipple

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